[Technic]

Originally Posted by vidoq

Hello!

I am intending to upgrade my E90 Standard sound system using a Helix DB Five amp [4x60W at 4Ohm + 1x250W], front midbass from Individual System, DLS T25 tweeters, JBL Crossovers and other subwoofers underseat and Vibe Slick 40 in the back. I will also use a Helix AFC active frequency convertor [high-low] convertor.

How should the recoding of the Professional HU be done?
I have called BMW Dealership and they didn't know to answer my question regarding coding.
Can anyone please tell me what should i ask them for?

Eg: car recoded to hifi?

Thank you very much!

http://www.e90post.com/forums/showthread.php?t=451145

[taibanl]

So I am about to get my car back after having been coded IAW the retrofit instructions...

However I noticed this today via Real OEM, alongside the part number for the OEM (non-retrofit) HiFi amp:

Originally Posted by Realoem;

On vehicles manufactured prior to
09/2010 the following conversion must
be performed in ISTA/P: 'HiFi system
conversion'

So there may be a difference in ISTA/P
A) Select "HiFi System Alpine" via the – Conversion – path and work through action plan
B) "Hifi System Conversion"
I had a crappy iphone RTA done when i dropped the car off, we'll see if there is a noticable difference. I will try and talk the dealer into looking for option "B" also.

[taibanl]

Originally Posted by taibanl

So I am about to get my car back after having been coded IAW the retrofit instructions...

However I noticed this today via Real OEM, alongside the part number for the OEM (non-retrofit) HiFi amp:



So there may be a difference in ISTA/P
A) Select "HiFi System Alpine" via the – Conversion – path and work through action plan
B) "Hifi System Conversion"
I had a crappy iphone RTA done when i dropped the car off, we'll see if there is a noticable difference. I will try and talk the dealer into looking for option "B" also.

Successful recode: see here